Title:
STORAGE INSPECTION SYSTEM OF ELECTRONIC CASH REGISTER
Document Type and Number:
Japanese Patent JPS5523554
Kind Code:
A
Abstract:
PURPOSE:To decide whether a storage device which is cleared at an adjustment time is normal or not by writing an estimated value in the pertinent storage device after reading storage contents at an adjustment time, and reading again written contents and comparing them with the estimated value above. CONSTITUTION:At the adjustment time after service completion of a day, the mode of keyboard 1 is wswitched to adjustment. In adjustment, contents of storage equipments 61 to 6n in data storage device 6 are read out to second register 22 successively and are printed on printer 8, and simultaneously, contents are cleared. Next, ''1'' is stored in all bits of first register 21 by signal generator 11, and next, these contents are written in data storage device 6 successively. Therefore, all ''1''s are stored in storage device 6, and these contents are read out to second register 22 successively, and contents of first register 21 are subtracted from contents of second register 22 by control circuit 3, thereby deciding anomaly.
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Inventors:
MATSUMOTO MASAHIKO
Application Number:
JP9596478A
Publication Date:
February 20, 1980
Filing Date:
August 04, 1978
Export Citation:
Assignee:
SANYO ELECTRIC CO
TOKYO SANYO ELECTRIC CO
TOKYO SANYO ELECTRIC CO
International Classes:
G07G1/12; (IPC1-7): G06F15/30